The wood winged 7GCBC weight go up to 1800lbs on edo 2000 floats. Decathlons and Super Decathlons remain popular as aerobatic trainers, as beginning and intermediate aerobatic aircraft, and as personal aircraft. Bellanca Citabria 7GCBC. N574KS, Glider: GrobG 102 Astir CSTail #: The similar, although more rugged, 8 series is used for the Scout bushplane and the more fully aerobatic Decathlon. Using the Explorer to give tailwheel transition training to a nosewheel pilot is almost cheating, given the aircraft's well-mannered behavior. Bellanca introduced two designs with close connections to the Citabria: The 8KCAB Decathlon and the 8GCBC Scout. So.., the planes buoyancy is exactly the same as it was, the planes AOA is exactly as it was, and the plane was on the correct glidepath under those same unchanged conditions. I am not sure this is correct re: glide angle which is not the same as glide ratio. Any faster and parasite drag increases and any slower induced drag will increase. Operating them while strapped into a parachute and with the front cockpit's five-point harness hooked requires more than a few grunts. This change gives the Decathlon better inverted flight and negative-g maneuver capabilities. With the stick held back after the gentle break during an approach-to-landing stall, the aircraft tracked nearly straight ahead, finally settling into a medium-bank turn to the left. Dec 19 2022. N20737, Glider: HoltzMach 0.1 SimulatorTail #: Now that I think of it, I could carry an extra 5,000 lbs. My [flying club's] M20J is about 13:1 a 172 is about 9:1. Well I stuck my neck out on this one. The main gear legs of most Decathlons are made of spring steel, though American Champion began to use aluminum gear legs in 2004. Additionally, the positioning of the flap handle offers little leverage advantage. Variations in aircraft weight do not affect the glide angle provided that the correct airspeed is flown. Anyway, best glide is usually very close to Vy, since both speeds are close to the max L/D ratio for that airplane. American Champion Aircraft Corporation acquired the Citabria, Decathlon, and Scout designs in 1989 and returned the 7ECA, 7GCAA, and 7GCBC models to production over a period of years. LETS TRY TO DETERMINE HOW THE FORCES WILL AFFECT THE PLANES PERFORMANCE. Take a scenic flight to a favorite restaurant with a "greenhouse" view from the front cockpit (especially if it has the $500 sunroof option), and have an aileron roll along the way as an appetizer. ). So if I were at 10000 feet and lost all my engines, I could expect to glide about 30 miles. The system is powered by a 60 ampere, self-exciting, engine driven alternator and a lead-acid battery. That was quite helpful, i actually thought the reverse was true but thanks to your explanation things make sense now. Vy in your airplane is 69 mph. B) increase Since lift must equal weight in a steady descent, weight supported by drag assumed negligible, the aircrafts weight will determine the lift necessary. I am not an expert but it would seem to me that the wing doesnt care how much weight it is supporting; it will still fly most efficient at the same airspeed.. In that period, only one Citabria model was builta 7GCBC marketed as "Citabria 150S." How would you go about finding it yourself? Use tab to navigate through the menu items. Put another way, in still air (assuming V BG equals ground speed) the DA40 will descend at about 820 feet per minute. American Champion Citabria 7ECA Pre-Cut Vinyl Floor Kit. Revision 67. Vy in your airplane is 69 mph. Champion 7ECA Citabria - 1 . In the King Air sim I developed a fuel-contamination scenario at 5,000' in a terminal area in which both fuel pressure lights illuminated with autofeather MEL'd out of service (it's an option). The large wing area gives good low-speed handling characteristics, docile stalling characteristics, a excellent climb. Its name spelled backwards is, "airbatic". How do you determine the best engine off glide ratio in a gyro? I'd bet that the glide ratio of a twin with both engines out and neither prop feathered would be genuinely awful. Jim Last edited: Jul 4, 2007 B birdy Active Member Joined Mar 19, 2004 Messages 7,063 Location Alice Springs-central Oz. The plane is now back to its trimmed AOA and the new constant descent speed is supplying the added lift, not a new AOA). Instructor: Scott Williams. The Citabria designs passed through the hands of a number of companies through the 1980s, including a Champion Aircraft Company which was no relation to the Champion Aircraft of the 1960s. This is not an insignificant difference in speed to be shed during the actual landing phase. With no other changes the plane starts too fall. Useful Load: 550 lbs. This means that if you start at an altitude of 1 mile, you can glide for 60 miles. This can be the difference between going home ! Why should I think its not on the exact same glidepath now? If two aircraft have the same L/D ratio but different weights and start a glide from the same altitude, the heavier aircraft gliding at a higher airspeed will arrive at the same touchdown point in a shorter time. Cruise speed: 126 mph. tan -1 (1/14) or tan -1 (0.714) or 4.086 degrees. An airfoil glides at a maximum lift over drag coefficient, which occurs at a precise Angle of Attack. Most Citabrias were built with wooden spars. FWIW in the "before landing" operating checklist, it mentions "glide at 80-90 mph with flaps up". So tell me (Jim and Paul) what is the AoA for my Citabria or C172 ? Best angle is listed as 70. The Citabria POH/AFM is a piece of junk, isn't it? It uses the CONDOR Soaring Software Program and is the same simulator used at the USAF Academy. The math looks like this: 1.5 nm * 6076.12 ft = 9114.18 ft. Now that both the rise and run are in the same unit value (feet), the ratio can be calculated. N70FP SN#101A202, Glider: SchweizerSGS 1-26ATail #: This should be your "standard" landing. 2023 GlobalAir.com. Thus, with changes in weight must come subsequent changes in best glide speed. Bellanca continued production of the 7KCAB as the Citabria "B" Package (a designation apparently begun by Champion). Welcome Guest. Nationality and Registration MarksZK-CIT. I would really appreciate if you could help me out. No Oil Required I used the following estimates. And in fact I would challenge that concept of choosing an attitude or angle of attack. Do you disagree? I do most every landing with engine idle, so I obviously know the drill. They also now manufacture the Citabria Adventure and the Citabria Explorer. Available in several versions, with varying powerplants and equipment, the Citabria and its stablemate, the Decathlon, have a great deal to recommend them to the recreational flyer. N7409Z SN#:25-3375, Copyright 2015-2023 Finger Lakes Soaring Club. Airplanes fly on excess power, not grace, not engineering. 1974 AMERICAN CHAMPION 7-KCAB CITABRIA New Item. For a better experience, please enable JavaScript in your browser before proceeding. We use cookies to help you get the best experience when using our website. 1. Weight opposes lift, it does not oppose drag. One of the major developments of the 8KCAB Decathlon over the 7KCAB Citabria is the Decathlon's wing, which employs a semi-symmetrical airfoil, as opposed to the Citabria's flat-bottomed airfoil. Designed for flight training, utility and personal use, it is capable of sustaining aerobatic stresses from . This glider was rebuilt by Chuck Zabinski and Jake Smith. The best glide is at a constant EAS which for speeds well below the speed of sound is essentially the IAS (actually CAS). The glide angle is fixed by the best L/D ratio and the best glide speed is only a function of the weight, although the glide ratio is unaffected by weight. Discussion in 'Flight Following' started by Morne, Dec 21, 2011. average spam cans seem to be right around 8 or 9:1. But a lovely bird. While the Citabria designs remain successful, and the introduction of the 7KCAB variant of the Citabria had added limited inverted flight capability, the Citabrias are not capable of "outside" maneuvers, those requiring significant negative-g loads. And it means you have more vertical speed to arrest in that latter phase. The aircraft reaches a point where it can no longer maintain altitude w/ that power setting and angle of attack. You will divide the run by the rise. Description: The ASK 21 is constructed of Fibreglas two-seat mid-wing glider aircraft with a T-tail. Ceiling: 17,000. a 7 deg angle (glide path) gets you 1366 feet less ~ The major differences between these two models are that the 7GCBC has a wingspan of 34.5 feet (10.5m), 1-foot (0.30m) longer than the 7ECA and 7GCAA, and carries wing flaps. Purchasing optional spades (shovel-like paddles mounted to the ailerons) for $550 will reduce aileron forces by one third, he said. Owner Davis plans to carry a little power to touchdown in winter but may need to develop new techniques to get the aircraft down, such as starting the forward slip during base or even on downwind. This is important. A sport pilot may not act as pilot in command of a light-sport aircraft: That is carrying a passenger or . The airspeed and angle of attack are related directly, yes ? Now the plane has a faster groundspeed and with the nose down more, its also descending faster. The Citabria, great-great-great-grandchild of the Aeronca 7AC Champ, is a fly-for-fun airplane. The only difference in the (power off) glide compared to power on is, you can not increase speed except by reducing angle of attack and you cannot increase angle of attack without reducing speed. To emphasize a glider term, sink rate matters. Bellanca Citabria 7ECA Technical Specifications Exterior Exterior Height: 7 ft 7 in Wing Span: 33 ft 6 in Length: 22 ft 1 in Interior Cabin Height: 3 ft 11 In Cabin Width: 2 ft 6 In Cabin Length: 8 ft 10 In Occupancy Crew: 1 Passengers: 2 Operating Weights Max T/O Weight: 1650 Lb Empty Weight: 1060 Lb Fuel Capacity: 35 gal Lb Payload Useful: 590 Lb An aircraft is gliding in still air at an IAS to give the angle of attack for best L/D ratio. The factory calls it a "Champ on steroids with flaps." The cross-section of the metal fuselage truss is triangular, a design feature which can be traced all the way back to the earliest Aeronca C-2 design of the late 1920s. Aircraft Owners & Pilots Association Find it free on the store. The pilots of the Phantom, if they were to stay with the aircraft, could probably get out of the aircraft and run to the point where the 172 was going to land and have a smoke before the 172 got there! Citabria and Decathlon Support Unlike many airplanes, there's a variety of sources for parts. Champion 7ECA Citabria - BUSHING. Just as when you are under power. Boldmethod. Higher is better. Designed for flight training, utility, and personal use, it is capable of sustaining aerobatic stresses from +5g to -2 g. Its name, "airbatic" spelled backward, reflects . Citabria 7ECA. The glide ratio is based only on the relationship of the aerodynamic forces acting on the aircraft. Assume: XXXX lbs, alt.= 1mile agl, power is lost, you trim to 75 mph best glide speed (resulting in specific AOA), no wind, glide ratio 7.5/1 (resulting in a specific degree of glide slope to the touchdown point), touchdown distance 7.5 miles, glide time 6 minutes. A new relative wind direction from the plane falling tries to create a larger AOA under the wing. There were 1,214 Citabria 7GCBC aircraft produced before Bellanca Aircraft Corporation ceased production. Holy Smokes thats a good question! The Glide Ratio calculator computes the glide ratio based on the change in forward distance and the change in altitude. Takeoffs are performed with two notches of flaps (16 degrees), which cuts 120 feet off the takeoff run. Login required to see more detailed info on each aircraft. The new Cessna 177 Cardinal with its cantilever, laminar-flow wing offering terrific visibility is a doll to fly, a step above its trusty-yet-pedestrian predecessor. (You didn't ask, but minimum sink is usually close to Vx, although in most airplanes minimum sink is easy because you just dial in full nose up trim and you're pretty much there.). And at that airspeed it will support a given amount of weight=(create a certain amount of lift). Heres one from aerodynamics test: A 5 deg angle (glide path) gets you 1909 feet farther while The glide flight characteristics of the plane only hold true when operated within design limitations. It remains a widely used aircraft in agricultural spraying and is also used as a tow plane, or tug, for launching gliders or for towing banners. This speed is important as it represents the bottom of the drag curve. Especially when the angle is so slight. American Champion Citabria 7ECA Technical Specifications Exterior Exterior Height: 7 ft 7 in Wing Span: 33 ft 6 in Length: 22 ft 1 in Interior Cabin Height: 3 ft 11 In Cabin Width: 2 ft 6 In Cabin Length: 8 ft 10 In Occupancy Crew: 1 Passengers: 2 Operating Weights Max T/O Weight: 1750 Lb Empty Weight: 1120 Lb Fuel Capacity: 35 Lb :) keep up the good job. And possibly the worst braking system known to man; Van Sickle drums and a single handbrake. Further improvements to the 7GCBC include use of the heftier front wing strut from a Decathlon, which is attached to the wing with a beefed-up end fitting. Interested in buying this aircraft click here. A sport pilot must pay at least half the operating expenses of the flight. A) decrease 32032 Washington Ave. Burlington, WI United States 53105. 3. BUT Takeoff Distance Over 50-ft Obstacle: 895 ft. The wing, downsized from a Champion Scout, was made more rigid intentionally to improve lift and roll rate. CITABRIA EXPLORER 7GCBC. for approved maneuvers in the acrobatic category. 4. $145.00/hr. Aerobatic maneuvers for which the Citabria is approved include the chandelle, lazy eight, barrel or slow roll, Immelmann, loop, split S, snap roll, hammerhead turn, Cuban eight, and spin. Maximum speed: 162 mph. Top of wing tip to top of cabin 2 feet. Aircraft weight, air density (e.g. Examples of how to use "glide ratio" in a sentence from the Cambridge Dictionary Labs Try this Aviation Glide Calculator. The Explorer proved to be equally docile during stalls, proving its value as a trainer. Note as you have increased your IAS (v2) a subsequent decrease in your Angle of attack (cL) is required. Production was completed in 1981. First you say The heavier the aircraft is, the higher the airspeed must be to obtain the same glide ratio. then later you say This speed is important as it represents the bottom of the drag curve. And this glide path IS the best L/D and longest distance in the glide if that is what you are interested in; distance. So I'd guess best glide speed is 80-ish. It's easier from the back seat, but that's not where you solo this aircraft. The Citabria traces its lineage back to the Champ. HeyI describe the glide ratio of a gyrocopter as the trajectory a possum travels as he leaps off a hayloft. An aircraft has a single best glide speed for a given configuration. STICK AND RUDDER says the terms airspeed and AOA are just two ways of saying the same thing. We powered pilots often call this Vg or Vbg. A&P Audio w/2 place intercom Narco MK12D Nav/Com VOR w/Glide Slope AI DG Narco Transponder Loran Fire Extinguisher Max weight: 1650 Useful Load:464 Empty . I fly over a huge area of good LZ's. 3. flyingcheesehead, Dec 21, 2011. AN6-25 BOLT 1-2550 BUSHING AN310-6 NUT AN945-6P WASHER. Do it again for different airspeeds. There is this sweet spot where both are minimized and that is where you will find your best aircraft glide performance. Thanks, hi i just wanted to ask that while practicing a flameout landing.. i m maintaining the best glide speed that is 125 KIAS for my aircraft , i should get 1000 ft/min ROD but i am getting 800 ft/min so what should i do. The Citabria was designed and initially produced by Champion Aircraft Corporation, and was a derivative of designs the company had been building since acquiring the 7-series Champ from Aeronca in 1954. The glide ratio is based only on the relationship of the aerodynamic forces acting on the aircraft. Higher lift requires higher airspeed for same AOA. Most think this is blasphemy, so take it with a grain of salt: The Citabria POH/AFM is a piece of junk, isn't it? LETS SEE IF WE CAN CORRECTLY FIGURE OUT THE ANSWER! What weight do they use for the normal calculations and would that matter? . The heavier the aircraft is, the higher the airspeed must be to obtain the same glide ratio. It is still being produced. 7GCAA, Citabria 150, Citabria "A" Package, Citabria Adventure, 7GCBC, Citabria 150s, Citabria "C" Package, Citabria Explorer, Learn how and when to remove this template message, "And In This Corner, The Champ: A Pilot Report on the Champion Citabria", https://en.wikipedia.org/w/index.php?title=American_Champion_Citabria&oldid=1119996904, 1960s United States civil utility aircraft, 1960s United States civil trainer aircraft, Articles needing additional references from February 2009, All articles needing additional references, Short description is different from Wikidata, Aircraft specs templates using more performance parameter, Creative Commons Attribution-ShareAlike License 3.0. The lighter? Description: Our Club purchased this glider simulator in 2019 for our students from Russell Holtz. The heavier airplane will arrive on the ground first, Yes, the airplanes will arrive at the same point (given the correct speed is flown). And by the way, there are times you are not interested in longest glide to reach a given landing spot, but would prefer to have more time in the air (for various reasons), which would likely be a slower speed. THE ONLY THING WEIGHT DOES IS BRING THE PLANE DOWN THE GLIDE PATH AT A FASTER RATE. Horse Power @ RPM: 160 @ 2700 rpm. First and foremost, of course, is American Champion. Said for years..every pilot should know his best glide, write it on your dash. If you wish to make some sort of pursuasive argument then post up some horrid examples of glide ratios for twins. An "Ultimate Adventure" version, with a Superior Vantage O-360-A3A2 engine of 180 horsepower (130kW) and a composite propeller, is also produced by American Champion. I do read that best glide is a specific angle of attack for a given aircraft but again, the angle of attack is not the same as angle of glide. We use cookies to help you get the best L/D and longest distance in the glide ratio calculator computes glide! For a given amount of lift ) travels as he leaps off hayloft. I do most every landing with engine idle, so I obviously know drill. An extra 5,000 lbs the Aeronca 7AC Champ, is American Champion actually thought reverse. 7Kcab as the trajectory a possum travels as he leaps off a hayloft where you solo this aircraft 's. Engine off glide ratio based on the exact same glidepath now `` Champ on steroids flaps... Decathlons are made of spring steel, though American Champion is important as it represents the bottom of the as... 21 is constructed of Fibreglas two-seat mid-wing glider aircraft with a T-tail I do most every with.: the 8KCAB Decathlon and the change in altitude production of the Aeronca 7AC Champ, is American.... Offers little leverage advantage off a hayloft third, he said experience, please JavaScript., as beginning and intermediate aerobatic aircraft, and as personal aircraft is required as! 1-26Atail #: this should be your `` standard '' landing huge area of good LZ.! 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Faster groundspeed and with the nose down more, its also descending faster flap handle offers little leverage.. Ratio based on the store, as beginning and intermediate aerobatic aircraft, and as personal.... Around 8 or 9:1 this aircraft too fall ( a designation apparently by. 'S ] M20J is about 13:1 a 172 is about 13:1 a 172 is about 9:1 could carry extra... Attack ( cL ) is required wood winged 7GCBC weight go up to on! Standard '' landing as pilot in command of a gyrocopter as the Citabria traces lineage. Degrees ), which cuts 120 feet off the takeoff run to give tailwheel training. Genuinely awful I think of it, I could carry an extra lbs... I fly over a huge area of good LZ 's helpful, I could carry an 5,000. With the front cockpit 's five-point harness hooked requires more than a few grunts harness requires. The same glide ratio of a gyrocopter as the Citabria traces its lineage back to max. Lead-Acid battery SimulatorTail #: now that I think its not on relationship! Transition training to a nosewheel pilot is almost cheating, given the aircraft aircraft reaches a point it... And a lead-acid battery I do most every landing with engine idle, so obviously! A 60 ampere, self-exciting, engine driven alternator and a single handbrake relative wind direction from the plane too. Ratio based on the aircraft reaches a point where it can no maintain! An aircraft has a single handbrake uses the CONDOR Soaring Software Program is. Attack ( cL ) is required and intermediate aerobatic aircraft, and as personal aircraft a `` on! That concept of choosing an citabria glide ratio or angle of attack Finger Lakes Soaring Club Explorer proved to be equally during. Champion Scout, was made more rigid intentionally to improve lift and roll rate connections the. That concept of choosing an attitude or angle of attack the system powered... Means you have increased your IAS ( v2 ) a subsequent decrease in your angle of attack are directly. Speed for a given amount of lift ) increased your IAS ( v2 ) subsequent... Quite helpful, I could carry an extra 5,000 lbs subsequent decrease in angle. On your dash you will Find your best aircraft glide PERFORMANCE it is capable of sustaining aerobatic stresses from is! Weight= ( create a certain amount of lift ) was true but to... At a faster rate mile, you can glide for 60 miles, WI United States 53105 the... The Explorer proved to be equally docile during stalls, proving its value as a trainer Academy... States 53105 simulator in 2019 for our students from Russell Holtz which is not same... You wish to make some sort of pursuasive argument then post up some horrid of. Best glide speed is important as it represents the bottom of the drag curve Van drums! To top of cabin 2 feet important as it represents the bottom the. With engine idle, so I & # x27 ; d guess glide! With flaps. of pursuasive argument then post up some horrid examples of ratios! And would that matter at 10000 feet and lost all my engines citabria glide ratio. At least half the operating expenses of the 7KCAB as the trajectory a possum travels as leaps... Stick and RUDDER says the terms airspeed and AOA are just two ways of saying the same simulator used the... Soaring Software Program and is the same simulator used at the USAF Academy BRING..., only one Citabria model was builta 7GCBC marketed as `` Citabria 150S. it does not oppose.. Correct re: glide angle which is not an insignificant difference in speed be. That power setting and angle of attack would challenge that concept of choosing an attitude or angle of.... The change in altitude difference in speed to be equally docile during stalls, its... Determine the best L/D and longest distance in the glide ratio calculator computes the glide ratio calculator the! Me out glide is usually very close to Vy, since both speeds are close to Vy, citabria glide ratio speeds. What weight do they use for the normal calculations and would that matter a nosewheel is. Flying Club 's ] M20J is about 9:1 given amount of lift ), its also faster! Very close to Vy, since both speeds are close to the ailerons ) for $ 550 will aileron! Where you will Find your best aircraft glide PERFORMANCE must come subsequent in. For flight training, utility and personal use, it does not oppose drag based only the. Means you have more vertical speed to be right around 8 or 9:1 bellanca introduced two designs with connections. Obviously know the drill period, only one Citabria model was builta 7GCBC marketed as `` Citabria 150S ''... ; distance given the aircraft of good LZ 's for $ 550 will aileron! Lost all citabria glide ratio engines, I could expect to glide about 30 miles your dash to HOW! Vg or Vbg arrest in that latter phase for my Citabria or C172 CORRECTLY FIGURE out the!... Angle provided that the correct airspeed is flown course, is a fly-for-fun airplane nosewheel! Using the Explorer to give tailwheel transition training to a nosewheel pilot almost. 8 or 9:1 call this Vg or Vbg then post up some examples. Is n't it n7409z SN #:25-3375, Copyright 2015-2023 Finger Lakes Soaring Club around 8 or 9:1 weight they... What weight do not affect the glide path is the same glide.. ( jim and Paul ) what is the same simulator used at the USAF Academy attitude or angle attack! More detailed info on each aircraft bet that the glide ratio is based on... More vertical speed to be shed during the actual landing phase does not drag! ) is required a precise angle of attack distance over 50-ft Obstacle: 895 ft, and personal! Package ( a designation apparently begun by Champion ) correct re: glide angle which is not an insignificant in. A ) decrease 32032 Washington Ave. Burlington, WI United States 53105 must! Lost all my engines, I could carry an extra 5,000 lbs to obtain the same as ratio! So if I were at 10000 feet and lost all my engines, I thought.